ISSN:
1432-0703
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Medicine
Notes:
Abstract The distributions of radioactivity were examined by whole body autoradiography and liquid scintillation spectrophotometry in male ddY mice following oral administration of tritium-labelled Irgasan® DP300 (2,4,4′-trichloro-2′-hydroxydiphenyl ether) (I) and its three chlorinated derivatives; 2′,3,4,4′-tetrachloro-2-hydroxydiphenyl ether (II), 2′,4,4′,5-tetrachloro-2-hydroxydiphenyl ether (III) and 2′,3,4,4′,5-pentachloro-2-hydroxydiphenyl ether (IV). The autoradiograms at 6 or 24 hr showed that the radioactivity distributed in the gall, liver, lung, heart, and kidneys. Among these tissues the radioactivity was most concentrated in the gall, suggesting the enterohepatic circulation of these compounds. A much higher level of radioactivity in each tissue was observed in mice receiving [3H]-III than the other compounds tested. Most of the radioactivity disappeared from each tissue in 24 hr due to [3H]-Irgasan DP300, [3H]-II or [3H]-IV, but in 96 hr it was due to [3H]-III. The cumulative radioactivity excreted in urine after administration of these compounds was in the order of [3H]-Irgasan DP300, [3H]-II, [3H]-IV and [3H]-III while that in feces was in the order of [3H]-IV, [3H]-III, [3H]-II and [3H]-Irgasan DP300,
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01055832
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